hmmm,
thanks for all the good advice,
think i know where it comes from, i've searched after thoracic outlet syndrome, fits me.
The right shoulder pops out of its joint once in a while,
took some scans before and it seems that the "wires" holding my shoulder in it place are cut.
i could do surchery but then i'm home for about 6 months, the doctor said after a period of about 4 months there is a small chance that i could ride my bike again...

after 2 months i could lift a small grocery bag for a short while,if the surchery works..
so i'll live with it.
but men when it happens it hurts like hell!!!!
Thx
sry for the bad english, its not my main language